How quickly do you fall for someone?

My friend introduced me to a really nice guy. She knows he's moving here for his new job. She remembered when I was in my past relationship that is he ever had the chance to date me he would. She told me and asked if she could give him my number. He messaged me immediately. Now we talk everyday. I told myself I wasn't going to catch feelings, but I am and telling myself slow down. I don't want to move to fast, but I also don't want to miss out on a great man. He checks of almost everything I look for in a man. I am recently out of relationship. What would you do?
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I want to be clear. Im not getting in a relationship with this guy. I really want to get to know him better be friend for now and see what happens later. I was just curious how quickly other people fall for someone?
How quickly do you fall for someone?
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